Messages in this thread | | | Date | Sun, 20 Apr 2008 19:00:55 -0500 | From | serge@hallyn ... | Subject | Re: 2.6.25 Kernel - Problems with capabilities |
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Quoting David (david@unsolicited.net): > Casey Schaufler wrote: >> Do you have a libcap that reflects the change from 32 capabilities >> to 64? You'll be looking for libcap.so.2.06 or thereabouts. >> > Adding libcap-2.08 and recompiling ntpd has fixed the issue, and I'm now > running normally, thanks!
I don't understand why, though. Looking at the ntpd code (ntp-4.2.4p4) it just does a cap_set_proc(cap_from_text("X=epi")); It should simply be sending in the _LINUX_CAPABILITY_VERSION which shipped with libcap, which should have been _V1, and the kernel should honor that so long as you didn't try to send in caps > 31, which ntpd wasn't.
> Was this userspace visible change planned in advance for 2.6.25 ? ... as I > guess a few other people with venerable old userspace components may come > across this issue. > > Cheers > David
It's been in the works a long time and we thought we'd done pretty well with backward compatibility. I really don't see why you had that failure!
Do you know which version of libcap you had before?
thanks, -serge
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